I came across this interesting website when I was looking for Japanese learning games. I'm not sure if anyone else has found this yet. It basically tests your Japanese langauge ability. At the end of the test you are rewarded with sushi. The higher you score, the better types of sushi you get. You can look at your past scores and all the sushi you have collected. You can take the test as many times as you want. You WILL have to register an account before taking the test though. I hope this is helpful to anyone. There are only 30 questions and is intended for students who still find level 4 JLPT difficult.

I apologize ahead of time for double posting . Still in search for a game that can help me with my Japanese I came across a very useful website. It contains A LOT of FREE worksheets you can use to practice and study with.